[Python-Dev] Windows buildbot trick

Sidnei da Silva sidnei at enfoldsystems.com
Fri Jul 18 17:42:11 CEST 2008

On Fri, Jul 18, 2008 at 4:14 AM, Thomas Heller <theller at ctypes.org> wrote:
> The most annoying thing on the windows buildbots is when Python crashes hard
> (with a general protection fault or stack overflow, for example).
> Usually the system pops up a dialog in this case which allows to
> attach a debugger to the process.  This dialog will stay open until
> the maintainer manually closes it, and will prevent the next builds.
> On my boxes I have inserted these two lines into the PythonXY/Scripts/buildbot
> script, right at the top:
>  import win32api; win32api.SetErrorMode(7)
>  print "SetErrorMode(7) called."
> These lines prevent the dialog box to be displayed for critical errors.
> For example, on Windows AMD64 the test_cpickle test in the trunk currently fails with
> a stack overflow; instead of hanging with the mentioned dialog box open the test now terminates:
> http://www.python.org/dev/buildbot/trunk/amd64%20XP%20trunk/builds/40/step-test/0

That's a great trick! I seem to remember that there is a way to turn
that off globally though, but not sure where. Maybe running
drwtsn32.exe and un-checking 'Visual Notification' does the trick?

Sidnei da Silva
Enfold Systems http://enfoldsystems.com
Fax +1 832 201 8856 Office +1 713 942 2377 Ext 214

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